<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="javascript:alert('test')">
    province：
    <select name="province" id="province" multiple>
        <option value="bj">BeiJing</option>
        <option value="tj">Tianjin</option>
        <option value="sh">Shanghai</option>

    </select>
</form>

</body>
</html>